Bspec says:
"Restriction : SRD must not be enabled when the PSR Setup time from DPCD
00071h is greater than the time for vertical blank minus one line."

Let's check for that and disallow PSR if we exceed the limit.

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Add a small helper to parse the PSR setup time from the DPCD PSR
capabilities and return the value in microseconds.

v2: Don't waste so many bytes on the psr_setup_time_us[] table

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Pull misc kbuild updates from Michal Marek:

 - coccicheck script improvements by Luis Rodriguez and Deepa Dinamani

 - new coccinelle patches by Yann Droneaud and Vaishali Thakkar

 - debian packaging fixes by Wilfried Klaebe, Henning Schild and Marcin
   Mielniczuk

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  Fix the Debian packaging script on systems with no codename
  builddeb: fix file permissions before packaging
  scripts/coccinelle: require coccinelle >= 1.0.4 on device_node_continue.cocci
  coccicheck: refer to Documentation/coccinelle.txt and wiki
  coccicheck: add support for requring a coccinelle version
  scripts: add Linux .cocciconfig for coccinelle
  coccicheck: replace --very-quiet with --quiet when debugging
  coccicheck: add support for DEBUG_FILE
  coccicheck: enable parmap support
  coccicheck: make SPFLAGS more useful
  coccicheck: move spatch binary check up
  builddeb: really include objtool binary in headers package
  coccinelle: catch krealloc() on devm_*() allocated memory
  coccinelle: recognize more devm_* memory allocation functions
  coccinelle: also catch kzfree() issues
  coccicheck: Allow for overriding spatch flags
  Coccinelle: noderef: Add new rules and correct the old rule

Pull kbuild updates from Michal Marek:

 - GCC plugin support by Emese Revfy from grsecurity, with a fixup from
   Kees Cook.  The plugins are meant to be used for static analysis of
   the kernel code.  Two plugins are provided already.

 - reduction of the gcc commandline by Arnd Bergmann.

 - IS_ENABLED / IS_REACHABLE macro enhancements by Masahiro Yamada

 - bin2c fix by Michael Tautschnig

 - setlocalversion fix by Wolfram Sang

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  gcc-plugins: disable under COMPILE_TEST
  kbuild: Abort build on bad stack protector flag
  scripts: Fix size mismatch of kexec_purgatory_size
  kbuild: make samples depend on headers_install
  Kbuild: don't add obj tree in additional includes
  Kbuild: arch: look for generated headers in obtree
  Kbuild: always prefix objtree in LINUXINCLUDE
  Kbuild: avoid duplicate include path
  Kbuild: don't add ../../ to include path
  vmlinux.lds.h: replace config_enabled() with IS_ENABLED()
  kconfig.h: allow to use IS_{ENABLE,REACHABLE} in macro expansion
  kconfig.h: use already defined macros for IS_REACHABLE() define
  export.h: use __is_defined() to check if __KSYM_* is defined
  kconfig.h: use __is_defined() to check if MODULE is defined
  kbuild: setlocalversion: print error to STDERR
  Add sancov plugin
  Add Cyclomatic complexity GCC plugin
  GCC plugin infrastructure
  Shared library support

Pull KVM updates from Paolo Bonzini:

 - ARM: GICv3 ITS emulation and various fixes.  Removal of the
   old VGIC implementation.

 - s390: support for trapping software breakpoints, nested
   virtualization (vSIE), the STHYI opcode, initial extensions
   for CPU model support.

 - MIPS: support for MIPS64 hosts (32-bit guests only) and lots
   of cleanups, preliminary to this and the upcoming support for
   hardware virtualization extensions.

 - x86: support for execute-only mappings in nested EPT; reduced
   vmexit latency for TSC deadline timer (by about 30%) on Intel
   hosts; support for more than 255 vCPUs.

 - PPC: bugfixes.

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (302 commits)
  KVM: PPC: Introduce KVM_CAP_PPC_HTM
  MIPS: Select HAVE_KVM for MIPS64_R{2,6}
  MIPS: KVM: Reset CP0_PageMask during host TLB flush
  MIPS: KVM: Fix ptr->int cast via KVM_GUEST_KSEGX()
  MIPS: KVM: Sign extend MFC0/RDHWR results
  MIPS: KVM: Fix 64-bit big endian dynamic translation
  MIPS: KVM: Fail if ebase doesn't fit in CP0_EBase
  MIPS: KVM: Use 64-bit CP0_EBase when appropriate
  MIPS: KVM: Set CP0_Status.KX on MIPS64
  MIPS: KVM: Make entry code MIPS64 friendly
  MIPS: KVM: Use kmap instead of CKSEG0ADDR()
  MIPS: KVM: Use virt_to_phys() to get commpage PFN
  MIPS: Fix definition of KSEGX() for 64-bit
  KVM: VMX: Add VMCS to CPU's loaded VMCSs before VMPTRLD
  kvm: x86: nVMX: maintain internal copy of current VMCS
  KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE
  KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures
  KVM: arm64: vgic-its: Simplify MAPI error handling
  KVM: arm64: vgic-its: Make vgic_its_cmd_handle_mapi similar to other handlers
  KVM: arm64: vgic-its: Turn device_id validation into generic ID validation
  ...

Pull more s390 updates from Martin Schwidefsky:

 - some cleanup for the hugetlbfs pte/pmd conversion functions

 - the code to check for the minimum CPU type is converted from
   assembler to C and an informational message is added in case the CPU
   is not new enough to run the kernel

 - bug fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/ftrace/jprobes: Fix conflict between jprobes and function graph tracing
  s390: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
  s390/zcrypt: fix possible memory leak in ap_module_init()
  s390/numa: only set possible nodes within node_possible_map
  s390/als: fix compile with gcov enabled
  s390/facilities: do not generate DWORDS define anymore
  s390/als: print missing facilities on facility mismatch
  s390/als: print machine type on facility mismatch
  s390/als: convert architecture level set code to C
  s390/sclp: move uninitialized data to data section
  s390/zcrypt: Fix zcrypt suspend/resume behavior
  s390/cio: fix premature wakeup during chp configure
  s390/cio: convert cfg_lock mutex to spinlock
  s390/mm: clean up pte/pmd encoding

Merge drm updates from Dave Airlie:
 "This is the main drm pull request for 4.8.

  I'm down with a cold at the moment so hopefully this isn't in too bad
  a state, I finished pulling stuff last week mostly (nouveau fixes just
  went in today), so only this message should be influenced by illness.
  Apologies to anyone who's major feature I missed :-)

  Core:
        Lockless GEM BO freeing
        Non-blocking atomic work
        Documentation changes (rst/sphinx)
        Prep for new fencing changes
        Simple display helpers
        Master/auth changes
        Register/unregister rework
        Loads of trivial patches/fixes.

  New stuff:
        ARM Mali display driver (not the 3D chip)
        sii902x RGB->HDMI bridge

  Panel:
        Support for new panels
        Improved backlight support

  Bridge:
        Convert ADV7511 to bridge driver
        ADV7533 support
        TC358767 (DSI/DPI to eDP) encoder chip support

  i915:
        BXT support enabled by default
        GVT-g infrastructure
        GuC command submission and fixes
        BXT workarounds
        SKL/BKL workarounds
        Demidlayering device registration
        Thundering herd fixes
        Missing pci ids
        Atomic updates

  amdgpu/radeon:
        ATPX improvements for better dGPU power control on PX systems
        New power features for CZ/BR/ST
        Pipelined BO moves and evictions in TTM
        GPU scheduler improvements
        GPU reset improvements
        Overclocking on dGPUs with amdgpu
        Polaris powermanagement enabled

  nouveau:
        GK20A/GM20B volt and clock improvements.
        Initial support for GP100/GP104 GPUs, GP104 will not yet support
        acceleration due to NVIDIA having not released firmware for them as of yet.

  exynos:
        Exynos5433 SoC with IOMMU support.

  vc4:
        Shader validation for branching

  imx-drm:
        Atomic mode setting conversion
        Reworked DMFC FIFO allocation
        External bridge support

  analogix-dp:
        RK3399 eDP support
        Lots of fixes.

  rockchip:
        Lots of small fixes.

  msm:
        DT bindings cleanups
        Shrinker and madvise support
        ASoC HDMI codec support

  tegra:
        Host1x driver cleanups
        SOR reworking for DP support
        Runtime PM support

  omapdrm:
        PLL enhancements
        Header refactoring
        Gamma table support

  arcgpu:
        Simulator support

  virtio-gpu:
        Atomic modesetting fixes.

  rcar-du:
        Misc fixes.

  mediatek:
        MT8173 HDMI support

  sti:
        ASOC HDMI codec support
        Minor fixes

  fsl-dcu:
        Suspend/resume support
        Bridge support

  amdkfd:
        Minor fixes.

  etnaviv:
        Enable GPU clock gating

  hisilicon:
        Vblank and other fixes"

* tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux: (1575 commits)
  drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup
  drm/nouveau/acpi: fix lockup with PCIe runtime PM
  drm/nouveau/acpi: check for function 0x1B before using it
  drm/nouveau/acpi: return supported DSM functions
  drm/nouveau/acpi: ensure matching ACPI handle and supported functions
  drm/nouveau/fbcon: fix font width not divisible by 8
  drm/amd/powerplay: remove enable_clock_power_gatings_tasks from initialize and resume events
  drm/amd/powerplay: move clockgating to after ungating power in pp for uvd/vce
  drm/amdgpu: add query device id and revision id into system info entry at CGS
  drm/amdgpu: add new definition in bif header
  drm/amd/powerplay: rename smum header guards
  drm/amdgpu: enable UVD context buffer for older HW
  drm/amdgpu: fix default UVD context size
  drm/amdgpu: fix incorrect type of info_id
  drm/amdgpu: make amdgpu_cgs_call_acpi_method as static
  drm/amdgpu: comment out unused defaults_staturn_pro static const structure to fix the build
  drm/amdgpu: enable UVD VM only on polaris
  drm/amdgpu: increase timeout of IB test
  drm/amdgpu: add destroy session when generate VCE destroy msg.
  drm/amd: fix deadlock of job_list_lock V2
  ...

 Switch to MULTIPLATFORM"

Missed conflict between commit c86f5173 ("ARM: clps711x: Switch to
MULTIPLATFORM") from the arm-soc tree and commit 250e46aa3bb3
("clocksource/drivers/clps_711x: Add the COMPILE_TEST option") from the
clockevents tree.
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Runtime PM fixes, fbcon and nv30 fix.
* 'linux-4.8' of git://github.com/skeggsb/linux:
  drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup
  drm/nouveau/acpi: fix lockup with PCIe runtime PM
  drm/nouveau/acpi: check for function 0x1B before using it
  drm/nouveau/acpi: return supported DSM functions
  drm/nouveau/acpi: ensure matching ACPI handle and supported functions
  drm/nouveau/fbcon: fix font width not divisible by 8

Pull ia64 updates from Tony Luck:
 "Miscellaneous ia64 cleanups"

* tag 'please-pull-misc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  ia64: salinfo: use a waitqueue instead a sema down/up combo
  ia64: efi: use timespec64 for persistent clock

Pull 64-bit ARM DT updates from Olof Johansson:
 "Just as the 32-bit contents, the 64-bit device tree branch also
  contains a number of additions this release cycle.

  New platforms:
   - LG LG1313
   - Mediatek MT6755
   - Renesas r8a7796
   - Broadcom 2837

  Other platforms with larger updates are:
   - Nvidia X1 platforms (USB 3.0, regulators, display subsystem)
   - Mediatek MT8173 (display subsystem added)
   - Rockchip RK3399 (a lot of new peripherals)
   - ARM Juno reference implementation (SCPI power domains, coresight,
     thermal)"

* tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (118 commits)
  arm64: tegra: Enable HDMI on Jetson TX1
  arm64: tegra: Add sor1_src clock
  arm64: tegra: Add XUSB powergates on Tegra210
  arm64: tegra: Add DPAUX pinctrl bindings
  arm64: tegra: Add ACONNECT bus node for Tegra210
  arm64: tegra: Add audio powergate node for Tegra210
  arm64: tegra: Add regulators for Tegra210 Smaug
  arm64: tegra: Correct Tegra210 XUSB mailbox interrupt
  arm64: tegra: Enable XUSB controller on Jetson TX1
  arm64: tegra: Enable debug serial on Jetson TX1
  arm64: tegra: Add Tegra210 XUSB controller
  arm64: tegra: Add Tegra210 XUSB pad controller
  arm64: tegra: Add DSI panel on Jetson TX1
  arm64: tegra: p2597: Add SDMMC power supplies
  arm64: tegra: Add PMIC support on Jetson TX1
  Revert "ARM64: DTS: meson-gxbb: switch ethernet to real clock"
  arm64: dts: hi6220: Add pl031 RTC support
  arm64: dts: r8a7796/salvator-x: Enable watchdog timer
  arm64: dts: r8a7796: Add RWDT node
  arm64: dts: r8a7796: Use SYSC "always-on" PM Domain
  ...

Pull ARM DT updates from Olof Johansson:
 "Device tree contents continue to be the largest branches we submit.
  This time around, some of the contents worth pointing out is:

  New SoC platforms:
   - Freescale i.MX 7Solo
   - Broadcom BCM23550
   - Cirrus Logic EP7209 and EP7211 (clps711x platforms)_
   - Hisilicon HI3519
   - Renesas R8A7792

  Some of the other delta that is sticking out, line-count wise:
   - Exynos moves of IP blocks under an SoC bus, which causes a large
     delta due to indentation changes
   - a new Tegra K1 board: Apalis
   - a bunch of small updates to many Allwinner platforms; new hardware
     support, some cleanup, etc"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (426 commits)
  ARM: dts: sun8i: Add dts file for inet86dz board
  ARM: dts: sun8i: Add dts file for Polaroid MID2407PXE03 tablet
  ARM: dts: sun8i: Use sun8i-reference-design-tablet for ga10h dts
  ARM: dts: sun8i: Use sun8i-reference-design-tablet for polaroid mid2809pxe04
  ARM: dts: sun8i: reference-design-tablet: Add drivevbus-supply
  ARM: dts: Copy sun8i-q8-common.dtsi sun8i-reference-design-tablet.dtsi
  ARM: dts: sun5i: Use sun5i-reference-design-tablet.dtsi for utoo p66 dts
  ARM: dts: sun5i: Use sun5i-reference-design-tablet.dtsi for dit4350 dts
  ARM: dts: sun5i: reference-design-tablet: Remove mention of q8
  ARM: dts: sun5i: reference-design-tablet: Set lradc vref to avcc
  ARM: dts: sun5i: Rename sun5i-q8-common.dtsi sun5i-reference-design-tablet.dtsi
  ARM: dts: sun5i: Move q8 display bits to sun5i-a13-q8-tablet.dts
  ARM: dts: sunxi: Rename sunxi-q8-common.dtsi sunxi-reference-design-tablet.dtsi
  ARM: dts: at91: Don't build unnecessary dtbs
  ARM: dts: at91: sama5d3x: separate motherboard gmac and emac definitions
  ARM: dts: at91: at91sam9g25ek: fix isi endpoint node
  ARM: dts: at91: move isi definition to at91sam9g25ek
  ARM: dts: at91: fix i2c-gpio node name
  ARM: dts: at91: vinco: fix regulator name
  ARM: dts: at91: ariag25 : fix onewire node
  ...

Pull ARM SoC driver updates from Olof Johansson:
 "Driver updates for ARM SoCs.

  A slew of changes this release cycle.  The reset driver tree, that we
  merge through arm-soc for historical reasons, is also sizable this
  time around.

  Among the changes:

   - clps711x: Treewide changes to compatible strings, merged here for simplicity.
   - Qualcomm: SCM firmware driver cleanups, move to platform driver
   - ux500: Major cleanups, removal of old mach-specific infrastructure.
   - Atmel external bus memory driver
   - Move of brcmstb platform to the rest of bcm
   - PMC driver updates for tegra, various fixes and improvements
   - Samsung platform driver updates to support 64-bit Exynos platforms
   - Reset controller cleanups moving to devm_reset_controller_register() APIs
   - Reset controller driver for Amlogic Meson
   - Reset controller driver for Hisilicon hi6220
   - ARM SCPI power domain support"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits)
  ARM: ux500: consolidate base platform files
  ARM: ux500: move soc_id driver to drivers/soc
  ARM: ux500: call ux500_setup_id later
  ARM: ux500: consolidate soc_device code in id.c
  ARM: ux500: remove cpu_is_u* helpers
  ARM: ux500: use CLK_OF_DECLARE()
  ARM: ux500: move l2x0 init to .init_irq
  mfd: db8500 stop passing around platform data
  ASoC: ab8500-codec: remove platform data based probe
  ARM: ux500: move ab8500_regulator_plat_data into driver
  ARM: ux500: remove unused regulator data
  soc: raspberrypi-power: add CONFIG_OF dependency
  firmware: scpi: add CONFIG_OF dependency
  video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
  input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip
  pwm: clps711x: Changing the compatibility string to match with the smallest supported chip
  serial: clps711x: Changing the compatibility string to match with the smallest supported chip
  irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip
  clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip
  clk: clps711x: Changing the compatibility string to match with the smallest supported chip
  ...

Pull ARM SoC defconfig updates from Olof Johansson:
 "Defconfig additions, removals, etc.

  Most of these are small changes adding the options for newly
  upstreamed drivers, or drivers needed for new board support.

  - removed Broadcom bcm_defconfig, targets are all covered in
    multi_v7_defconfig

  - new defconfig: multi_v4t_defconfig"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
  ARM: multi_v7_defconfig: enable STMicroelectronics DRM Support
  ARM: multi_v7_defconfig: enable STMicroelectronics BDISP 2D blitter driver
  ARM: omap2plus_defconfig: Fix USB selection to keep Ethernet working
  ARM: configs: lpc18xx: enable adc and dac iio drivers
  ARM: config: Add a multi_v4t_defconfig
  ARM: multi_v7_defconfig: add ACT8945A
  ARM: at91/defconfig: Add ACT8945A driver
  ARM: imx_v6_v7_defconfig: Select ADS7846 support
  ARM: configs: qualcomm: Add MDM9615 missing defconfigs
  ARM: multi_v7_defconfig: Enable vivid driver as a module
  ARM: exynos_defconfig: Enable vivid driver as a module
  ARM: defconfig: enable the MSM8660 pin controller
  ARM: imx_v6_v7_defconfig: enable USB FFS gadget
  ARM: socfpga: enable PL330 DMA in socfpga_defconfig
  ARM: socfpga: add PCIe to socfpga_defconfig
  ARM: multi_v7_defconfig: defconfig: Enable r8a7792 SoC
  ARM: shmobile: defconfig: Enable r8a7792 SoC
  ARM: Remove bcm_defconfig
  ARM: multi_v7_defconfig: Enable Broadcom Kona watchdog
  ARM: multi_v7_defconfig: Enable Broadcom STB PWM
  ...

Pull 64-bit ARM SoC updates from Olof Johansson:
 "Changes to platform code for 64-bit ARM platforms.

  Nearly all of these are defconfig updates to enable new drivers or old
  drivers still used on these 64-bit platforms.

  Added platforms for this release are:

   - Broadcom BCM2837
   - Renesas R8A7796"

* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
  arm64: remove duplicate PWM entry in defconfig
  arm64: Update default configuration
  arm64: defconfig: Enable more IP blocks for Exynos7 and Exynos5433
  arm64: amlogic: select gxbb clk driver
  arm64: defconfig: Enable S2MPS11 clock and S3C RTC driver
  arm64: marvell: enable Armada 3700 clock drivers
  arm64: defconfig: enable msm8996 pinctrl support
  arm64: defconfig: Enable qcom msm8996 clk drivers
  arm: defconfig: Enable PM8941 pwr key
  arm64: defconfig: enable stmmac and realtek PHY as modules
  arm64: Kconfig: select PM{,_GENERIC_DOMAINS} for ARCH_VEXPRESS
  arm64: defconfig: enable SENSORS_ARM_SCPI
  arm64: defconfig: enable Generic on-chip SRAM driver
  arm64: configs: enable PCIe driver for Armada 7K/8K
  arm64: Add platform selection for BCM2835.
  arm64: defconfig: disable plain NEON implementation of AES
  arm64: Allow for different DMA and CPU bus offsets
  arm64: defconfig: enable Renesas R8A7796 SoC
  arm64: defconfig: Enable Cadence MACB/GEM support
  ARM64: Kconfig: Select the Amlogic Meson pin controller driver
  ...

Pull ARM SoC platform updates from Olof Johansson:
 "Improved and new platform support for various SoCs:

  New SoC support:
   - Broadcom BCM23550
   - Freescale i.MX7Solo
   - Qualcomm MDM9615
   - Renesas r8a7792

  Improvements:
   - convert clps711x to multiplatform
   - debug uart improvements for Atmel platforms
   - Tango platform improvements: HOTPLUG_CPU, Suspend-to-ram
   - OMAP tweaks and improvements to hwmod
   - OMAP support for kexec on SMP"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (109 commits)
  ARM: davinci: fix build break because of undeclared dm365_evm_snd_data
  ARM: s3c64xx: smartq: Avoid sparse warnings
  ARM: sti: Implement dummy L2 cache's write_sec
  ARM: STi: Update machine _namestr to be more generic.
  arm: meson: explicitly select clk drivers
  ARM: tango: add Suspend-to-RAM support
  ARM: hisi: consolidate the hisilicon machine entries
  ARM: tango: fix CONFIG_HOTPLUG_CPU=n build
  MAINTAINERS: Update BCM281XX/BCM11XXX/BCM216XX entry
  MAINTAINERS: Update BCM63XX entry
  MAINTAINERS: Add NS2 entry
  MAINTAINERS: Fix nsp false-positives
  MAINTAINERS: Change L to M for Broadcom ARM/ARM64 SoC entries
  ARM: debug: Enable DEBUG_BCM_5301X for Northstar Plus SoCs
  ARM: clps711x: Switch to MULTIPLATFORM
  ARM: clps711x: Remove boards support
  ARM: clps711x: Add basic DT support
  ARM: clps711x: Reduce static map size
  ARM: SAMSUNG: Constify iomem address passed to s5p_init_cpu
  ARM: oxnas: Change OX810SE default driver config
  ...

Pull ARM SoC cleanups from Olof Johansson:
 "The cleanup branch keeps going down in size as we've completed a lot
  of the major legacy platform removals and conversions.

  A handful of changes this time around, some of the themes or larger
  sets are:

   - A bunch of i.MX cleanups around platform detection, init call cleanups
   - Misc fixes of missing/implicit includes
   - Removal of ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits)
  ARM: mps2: fix typo
  ARM: s3c64xx: avoid warning about 'struct device_node'
  bus: mvebu-mbus: make mvebu_mbus_syscore_ops static
  bus: mvebu-mbus: fix __iomem on register pointers
  ARM: tegra: Remove board_init_funcs array
  ARM: iop: Fix indentation
  ARM: imx: remove cpu_is_mx*()
  ARM: imx: remove last call to cpu_is_mx5*
  ARM: imx: rework mx27_pm_init() call
  ARM: imx: deconstruct mx3_idle
  ARM: imx: deconstruct mxc_rnga initialization
  ARM: imx: remove cpu_is_mx1 check
  ARM: i.MX: Do not explicitly call l2x0_of_init()
  ARM: i.MX: system.c: Tweak prefetch settings for performance
  ARM: i.MX: system.c: Replace magic numbers
  ARM: i.MX: system.c: Remove redundant errata 752271 code
  ARM: i.MX: system.c: Convert goto to if statement
  ARM: Kirkwood: fix kirkwood_pm_init() declaration/type
  ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() static
  ARM: orion5x: make orion5x_legacy_handle_irq static
  ...

Merge tag 'linux-kselftest-4.8-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:
 "This contains new tests and fixes:

   - a few fixes to existing tests

   - new media tests for testing driver unbind, and device removal paths
     while an user application is actively making system calls and
     ioctls"

* tag 'linux-kselftest-4.8-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: media_tests add a new video device test
  selftests: media_tests - Add media_device_open to .gitignore
  selftests: add media controller regression test scripts and document
  selftests: add media_device_open test
  selftests: media_device_test change it to randomize loop count
  selftests/vm: Don't mlockall MCL_CURRENT in on-fault-limit test
  selftests/vm: write strlen length instead of sizeof to nr_hugepages
  selftests/lib: set printf.sh executable

Merge tag 'linux-kselftest-4.8-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:

 - Add a new timer set-tz test case

 - Fix a bug in exec test Makefile dependency list

* tag 'linux-kselftest-4.8-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/exec: Makefile is a run-time dependency, add it to the install list
  kselftests: timers: Add set-tz test case

Merge tag 'hwmon-for-linus-v4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull more hwmon updates from Guenter Roeck:

 - Improved error handling in tmp102, lm75, and lm90 drivers

 - Bug fixes in sht3x, ftsteutates, iio_hwmon, and adt7411 drivers

* tag 'hwmon-for-linus-v4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (adt7411) set sane values for CFG1 and CFG3
  hwmon: (iio_hwmon) fix memory leak in name attribute
  hwmon: (ftsteutates) Fix potential memory access error
  hwmon: (tmp102) Improve error handling
  hwmon: (lm75) Improve error handling
  hwmon: (lm90) Improve error handling
  hwmon: (lm90) Add missing assignment
  hwmon: (sht3x) set initial jiffies to last_update

Pull crypto fixes from Herbert Xu:
 "This fixes a number of regressions in the marvell cesa driver caused
  by the chaining work, and a regression in lib/mpi that leads to a
  GFP_KERNEL allocation with preemption disabled"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: marvell - Don't copy IV vectors from the _process op for ciphers
  lib/mpi: Fix SG miter leak
  crypto: marvell - Update cache with input sg only when it is unmapped
  crypto: marvell - Don't chain at DMA level when backlog is disabled
  crypto: marvell - Fix memory leaks in TDMA chain for cipher requests

Pull x86 header cleanups from Ingo Molnar:
 "This tree is a cleanup of the x86 tree reducing spurious uses of
  module.h - which should improve build performance a bit"

* 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, crypto: Restore MODULE_LICENSE() to glue_helper.c so it loads
  x86/apic: Remove duplicated include from probe_64.c
  x86/ce4100: Remove duplicated include from ce4100.c
  x86/headers: Include spinlock_types.h in x8664_ksyms_64.c for missing spinlock_t
  x86/platform: Delete extraneous MODULE_* tags fromm ts5500
  x86: Audit and remove any remaining unnecessary uses of module.h
  x86/kvm: Audit and remove any unnecessary uses of module.h
  x86/xen: Audit and remove any unnecessary uses of module.h
  x86/platform: Audit and remove any unnecessary uses of module.h
  x86/lib: Audit and remove any unnecessary uses of module.h
  x86/kernel: Audit and remove any unnecessary uses of module.h
  x86/mm: Audit and remove any unnecessary uses of module.h
  x86: Don't use module.h just for AUTHOR / LICENSE tags

Introduce a new KVM capability, KVM_CAP_PPC_HTM, that can be queried to
determine if a PowerPC KVM guest should use HTM (Hardware Transactional
Memory).

This will be used by QEMU to populate the pa-features bits in the
guest's device tree.
Signed-off-by: NSam Bobroff <sam.bobroff@au1.ibm.com>
Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

We are now able to support KVM T&E with MIPS32 guests on some MIPS64r2
and MIPS64r6 hosts, so select HAVE_KVM so it can be enabled.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

KVM sometimes flushes host TLB entries, reading each one to check if it
corresponds to a guest KSeg0 address. In the absence of EntryHi.EHInv
bits to invalidate the whole entry, the entries will be set to unique
virtual addresses in KSeg0 (which is not TLB mapped), spaced 2*PAGE_SIZE
apart.

The TLB read however will clobber the CP0_PageMask register with
whatever page size that TLB entry had, and that same page size will be
written back into the TLB entry along with the unique address.

This would cause breakage when transparent huge pages are enabled on
64-bit host kernels, since huge page entries will overlap other nearby
entries when separated by only 2*PAGE_SIZE, causing a machine check
exception.

Fix this by restoring the old CP0_PageMask value (which should be set to
the normal page size) after reading the TLB entry if we're going to go
ahead and invalidate it.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

kvm_mips_trans_replace() passes a pointer to KVM_GUEST_KSEGX(). This
breaks on 64-bit builds due to the cast of that 64-bit pointer to a
different sized 32-bit int. Cast the pointer argument to an unsigned
long to work around the warning.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

When emulating MFC0 instructions to load 32-bit values from guest COP0
registers and the RDHWR instruction to read the CC (Count) register,
sign extend the result to comply with the MIPS64 architecture. The
result must be in canonical 32-bit form or the guest may malfunction.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

The MFC0 and MTC0 instructions in the guest which cause traps can be
replaced with 32-bit loads and stores to the commpage, however on big
endian 64-bit builds the offset needs to have 4 added so as to
load/store the least significant half of the long instead of the most
significant half.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Fail if the address of the allocated exception base doesn't fit into the
CP0_EBase register. This can happen on MIPS64 if CP0_EBase.WG isn't
implemented but RAM is available outside of the range of KSeg0.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Update the KVM entry point to write CP0_EBase as a 64-bit register when
it is 64-bits wide, and to set the WG (write gate) bit if it exists in
order to write bits 63:30 (or 31:30 on MIPS32).

Prior to MIPS64r6 it was UNDEFINED to perform a 64-bit read or write of
a 32-bit COP0 register. Since this is dynamically generated code,
generate the right type of access depending on whether the kernel is
64-bit and cpu_has_ebase_wg.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Update the KVM entry code to set the CP0_Entry.KX bit on 64-bit kernels.
This is important to allow the entry code, running in kernel mode, to
access the full 64-bit address space right up to the point of entering
the guest, and immediately after exiting the guest, so it can safely
restore & save the guest context from 64-bit segments.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

The MIPS KVM entry code (originally kvm_locore.S, later locore.S, and
now entry.c) has never quite been right when built for 64-bit, using
32-bit instructions when 64-bit instructions were needed for handling
64-bit registers and pointers. Fix several cases of this now.

The changes roughly fall into the following categories.

- COP0 scratch registers contain guest register values and the VCPU
  pointer, and are themselves full width. Similarly CP0_EPC and
  CP0_BadVAddr registers are full width (even though technically we
  don't support 64-bit guest address spaces with trap & emulate KVM).
  Use MFC0/MTC0 for accessing them.

- Handling of stack pointers and the VCPU pointer must match the pointer
  size of the kernel ABI (always o32 or n64), so use ADDIU.

- The CPU number in thread_info, and the guest_{user,kernel}_asid arrays
  in kvm_vcpu_arch are all 32 bit integers, so use lw (instead of LW) to
  load them.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

There are several unportable uses of CKSEG0ADDR() in MIPS KVM, which
implicitly assume that a host physical address will be in the low 512MB
of the physical address space (accessible in KSeg0). These assumptions
don't hold for highmem or on 64-bit kernels.

When interpreting the guest physical address when reading or overwriting
a trapping instruction, use kmap_atomic() to get a usable virtual
address to access guest memory, which is portable to 64-bit and highmem
kernels.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Calculate the PFN of the commpage using virt_to_phys() instead of
CPHYSADDR(). This is more portable as kzalloc() may allocate from XKPhys
instead of KSeg0 on 64-bit kernels, which CPHYSADDR() doesn't handle.
This is sufficient for highmem kernels too since kzalloc() will allocate
from lowmem in KSeg0.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

The KSEGX() macro is defined to 32-bit sign extend the address argument
and logically AND the result with 0xe0000000, with the final result
usually compared against one of the CKSEG macros. However the literal
0xe0000000 is unsigned as the high bit is set, and is therefore
zero-extended on 64-bit kernels, resulting in the sign extension bits of
the argument being masked to zero. This results in the odd situation
where:

  KSEGX(CKSEG) != CKSEG
  (0xffffffff80000000 & 0x00000000e0000000) != 0xffffffff80000000)

Fix this by 32-bit sign extending the 0xe0000000 literal using
_ACAST32_.

This will help some MIPS KVM code handling 32-bit guest addresses to
work on 64-bit host kernels, but will also affect KSEGX in
dec_kn01_be_backend() on a 64-bit DECstation kernel, and the SiByte DMA
page ops KSEGX check in clear_page() and copy_page() on 64-bit SB1
kernels, neither of which appear to be designed with 64-bit segments in
mind anyway.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Acked-by: NRalf Baechle <ralf@linux-mips.org>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Kexec needs to know the addresses of all VMCSs that are active on
each CPU, so that it can flush them from the VMCS caches. It is
safe to record superfluous addresses that are not associated with
an active VMCS, but it is not safe to omit an address associated
with an active VMCS.

After a call to vmcs_load, the VMCS that was loaded is active on
the CPU. The VMCS should be added to the CPU's list of active
VMCSs before it is loaded.
Signed-off-by: NJim Mattson <jmattson@google.com>
Signed-off-by: NRadim Krčmář <rkrcmar@redhat.com>

KVM maintains L1's current VMCS in guest memory, at the guest physical
page identified by the argument to VMPTRLD. This makes hairy
time-of-check to time-of-use bugs possible,as VCPUs can be writing
the the VMCS page in memory while KVM is emulating VMLAUNCH and
VMRESUME.

The spec documents that writing to the VMCS page while it is loaded is
"undefined". Therefore it is reasonable to load the entire VMCS into
an internal cache during VMPTRLD and ignore writes to the VMCS page
-- the guest should be using VMREAD and VMWRITE to access the current
VMCS.

To adhere to the spec, KVM should flush the current VMCS during VMPTRLD,
and the target VMCS during VMCLEAR (as given by the operand to VMCLEAR).
Since this implementation of VMCS caching only maintains the the current
VMCS, VMCLEAR will only do a flush if the operand to VMCLEAR is the
current VMCS pointer.

KVM will also flush during VMXOFF, which is not mandated by the spec,
but also not in conflict with the spec.
Signed-off-by: NDavid Matlack <dmatlack@google.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Merge branch 'kvm-ppc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into next

Fix for CVE-2016-5412, a denial-of-service vulnerability in HV KVM on
POWER8 machines

Pull backlight updates from Lee Jones:
 "Add support for an enable regulator to lp855x_bl"

* tag 'backlight-for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: lp855x: Add enable regulator

Pull MFD updates from Lee Jones:
 "Core Framework:
   - New API to call bespoke pre/post IRQ handlers; Regmap

  New Device Support:
   - Add support for RN5T567 to rn5t618
   - Add support for COMe-cSL6 and COMe-mAL10 to kempld-core

  New Functionality:
   - Add support for USB Power Supply to axp20x
   - Add support for Power Key to hi655x-pmic

  Fix-ups:
   - Update MAINTAINERS; Dialog, Altera
   - Remove module support; max77843, max77620, max8998, max8997, max8925-i2c
   - Add module support; max14577
   - Constifying; max77620
   - Allow bespoke IRQ masking/unmasking; max77620
   - Remove superfluous code; arizona, qcom_rpm, smsc-ece1099
   - Power Management fixups; arizona-core
   - Error-path improvement; twl-core, dm355evm_msp, smsc-ece1099, hi655x
   - Clocking fixups; twl6040
   - Trivial (spelling, headers, coding-style, whitespace, (re)naming);
       si476x-i2c, omap-usb-tll, ti_am335x_tscadc, tps6507, hi655x-pmic

  Bug Fixes:
   - Fix offset error for MSM8660; qcom_rpm
   - Fix possible spurious IRQs; arizona, hi655x-pmic"

* tag 'mfd-for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (42 commits)
  mfd: qcom_rpm: Parametrize also ack selector size
  mfd: twl6040: Handle mclk used for HPPLL and optional internal clock source
  mfd: Add support for COMe-cSL6 and COMe-mAL10 to Kontron PLD driver
  mfd: hi655x: Fix return value check in hi655x_pmic_probe()
  mfd: smsc-ece1099: Return directly after a function failure in smsc_i2c_probe()
  mfd: smsc-ece1099: Delete an unnecessary variable initialisation in smsc_i2c_probe()
  mfd: dm355evm_msp: Return directly after a failed platform_device_alloc() in add_child()
  mfd: twl-core: Refactoring for add_numbered_child()
  mfd: twl-core: Return directly after a failed platform_device_alloc() in add_numbered_child()
  mfd: arizona: Add missing disable of PM runtime on probe error path
  mfd: stmpe: Move platform data into MFD driver
  mfd: max14577: Allow driver to be built as a module
  mfd: max14577: Use module_init() instead of subsys_initcall()
  mfd: arizona: Remove some duplicate defines
  mfd: qcom_rpm: Remove unused define
  mfd: hi655x-pmic: Add powerkey device to hi655x PMIC driver
  mfd: hi655x-pmic: Rename some interrupt macro names
  mfd: hi655x-pmic: Fixup issue with un-acked interrupts
  mfd: arizona: Check if AOD interrupts are pending before dispatching
  mfd: qcom_rpm: Fix offset error for msm8660
  ...